CT STC-1 Solar Thermal Contractor Connecticut’s STC-1 recently shifted its scope to address heat pump integration alongside traditional solar thermal systems, reflecting market expansion beyond water heating. The updated exam now covers hybrid configurations, refrigerant-based loops, and modern controls that weren’t previously tested. Installers must grasp both legacy and emerging technologies to pass.
| Exam Name | CT STC-1 Solar Thermal Contractor |
| Format | PDF & Practice Test Engine |
| Target Year | 2026 Updated |
| Features | 100% Verified Q&As |
